Synthesis and Crystal Structure of a New Mo/Au/S Cluster [Et4N][Mo2S4(AuPPh3)(edt)2]· 0.25Et2O·0.25MeOH (edt = Ethanedithiolate) |
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引用本文: | 张文华,虞虹,唐晓艳,张勇,郎建平.Synthesis and Crystal Structure of a New Mo/Au/S Cluster [Et4N][Mo2S4(AuPPh3)(edt)2]· 0.25Et2O·0.25MeOH (edt = Ethanedithiolate)[J].结构化学,2009,28(6):669-672. |
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作者姓名: | 张文华 虞虹 唐晓艳 张勇 郎建平 |
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作者单位: | College of Chemistry, Chemical Engineering and Materials Science, Suzhou University, Suzhou 215123, China
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基金项目: | 国家自然科学基金,the SooChow ScholarProgram and Program for Innovative Research Team of Suzhou University |
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摘 要: | Reactions of the preformed cluster precursor Et4N]2Mo2S2(μ-S)2(edt)2] (edt = ethanedithiolate) (1) with Au(PPh3)Cl] in MeOH/MeCN gave rise to a new heterobimetallic Mo/Au/S cluster Et4N]Mo2S4(AuPPh3)(edt)2]·0.25Et2O·0.25MeOH (2·0.25Et2O·0.25MeOH). It was characterized by elemental analysis, IR spectrum and X-ray analysis. 2·0.25Et2O·0.25MeOH crystallizes in the monoclinic system, space group C2/c with a = 20.117(4), b = 9.2705(19), c = 44.418(9) A^°, β= 93.19(3)°, V = 8271(3) A^°^3, Z = 8, Dc = 1.794 g/cm^3, T = 193 K, C31.25H43AuMo2NO0.50PS8, Mr = 1116.96, F(000) = 4380, μ(MoKa) = 4.603 mm^-1, S = 1.019, R = 0.0672 and wR = 0.1708 for 7243 observed reflections with I 〉 2σ(I). The anion of 2 consists of a butterfly-shaped Mo2S4Au core in which one AuPPh3]^+ cation is coordinated by one bridging S and two terminal S atoms of the (edt)2Mo2(S)2(μ-S)2] moiety. The Au(I) center adopts a pseudo-tetrahedral coordination geometry, and the Au-S bond lengths vary from 2.425(2) to 2.898(3)A^°.
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关 键 词: | 甲醇 三苯基膦 红外光谱 X射线衍射分析 |
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